Results 31 to 40 of about 251,961 (304)

Hot Particle Drag in Compressible Gas [PDF]

Aerosol Science and Technology, 1990
This paper examines the drag force felt by relatively large (250 micron) MgF2 particles moving inside the exhaust of a magnesium-teflon flare burned at reduced pressure (0.02 atm). It is shown that the well-known Stokes formula for the drag on a spherical particle must be modified to take into account the MgF2 particles' elevated temperature with ...
openaire   +1 more source

Hot Workability of 300M Steel Investigated by In Situ and Ex Situ Compression Tests

Metals, 2019
In this work, hot compression experiments of 300M steel were performed at 900−1150 °C and 0.01−10 s−1. The relation of flow stress and microstructure evolution was analyzed. The intriguing finding was that at a lower strain rate (0.
Rongchuang Chen, Haifeng Xiao, Min Wang, Jianjun Li   +3 more
doaj   +1 more source

On the Hot Deformation of a Fe-Al-Ta Iron Aluminide Prepared via Laser Powder Bed Fusion

Crystals, 2023
In the present work, a combined process of laser powder bed fusion (LPBF) and hot working in terms of microstructure refinement was investigated for Fe-25Al-1.5Ta alloy samples.
Aliakbar Emdadi, Sebastian Bolz, Felix Jensch, Michael Tovar, Sabine Weiß   +4 more
doaj   +1 more source

Deformation behavior of a new Ni-Co base superalloy GH4251 during hot compression

Materials Research Express, 2023
The deformation behavior of a new Ni-Co base superalloy GH4251 under hot compression tests within the deformation strain window of 0.36 to 1.2 was investigated in the temperature range of 1050 ∼ 1170 °C and strain rate range of 0.001 ∼ 1 s ^−1 . Based on
Hongyao Yu, Jue Wang, Hailong Qin, Canjin Huang, Tijuan Cheng, Chen Wang, Zhongnan Bi   +6 more
doaj   +1 more source

Study on Hot Deformation Behavior and Texture Evolution of Aluminum Alloy 7075 Based on Visco-Plastic Self-Consistent Model

Metals, 2022
In this paper, the VPSC (visco-plastic self-consistent) model was improved by considering the effect of heating rate. The hot compression deformation behavior and texture evolution of AA7075 were studied based on the improved VPSC model and EBSD ...
Siyuan Zhu, Man Zhao, Jian Mao, Steven Y. Liang   +3 more
doaj   +1 more source

The applicability of the wind compression model

, 2014
Compression of the stellar winds from rapidly rotating hot stars is described by the wind compression model. However, it was also shown that rapid rotation leads to rotational distortion of the stellar surface, resulting in the appearance of non-radial ...
Cariková, Zuzana, Skopal, Augustin
core   +1 more source

Density-Dependent Liquid Nitromethane Decomposition: Molecular Dynamics Simulations Based on ReaxFF [PDF]

, 2011
The decomposition mechanism of hot liquid nitromethane at various compressions was studied using reactive force field (ReaxFF) molecular dynamics simulations.
Goddard, William A., III, Katz, Gil, Kosloff, Ronnie, Rom, Naomi, van Duin, Adri C. T., Zeiri, Yehuda, Zybin, Sergey V.   +6 more
core   +2 more sources

Constitutive modeling and workability characterization of pre-deformed AZ31 magnesium alloy during hot shear-compression deformation

Journal of Materials Research and Technology
Pre-deformation is a cost-efficient method to control the microstructure and mechanical properties of wrought magnesium (Mg) alloys. It introduces twins that promote dynamic recrystallization during hot deformation, thereby improving hot workability and ...
Junsong Jin, Fangtao Chai, Jinchuan Long, Chang Gao, Shaolei Wang, Pan Zeng, Xuefeng Tang, Pan Gong, Mao Zhang, Lei Deng, Xinyun Wang   +10 more
doaj   +1 more source

Hot deformation behavior and workability characteristics of AZ91 magnesium alloy powder compacts-A study using processing map [PDF]

, 2013
This study examined the hot deformation behavior and workability characteristics of A291 Mg alloy powder compacts by performing hot compression tests with a Gleeble 3800 machine.
Jabbari Taleghani, Mohammad Ali, Torralba Castelló, José Manuel   +1 more
core   +2 more sources

Hot Deformation Behavior of PM Ni with Harmonic Microstructure

Metals, 2022
The hot deformation behavior of a harmonic-structured pure nickel has been studied and compared with the hot deformability of a homogeneously structured nickel.
Cinzia Menapace, Bhupendra Sharma, Kei Ameyama   +2 more
doaj   +1 more source